<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Page 2</title>
</head>
<body>
    <nav>
        <ul>
            <li><a href="./1.html">Page 1</a></li>
            <li><a href="./2.html">Page 2</a></li>
        </ul>
    </nav>
    <h1>Page 2</h1>
    <p>这是第二个页面的内容</p>
</body>
</html>